What a great idea! You can shop for a book or two or six and then sit down with a glass of wine and enjoy your purchases. Or I suppose you could order coffee, if you really wanted to.
The selection of books is decent and diverse. Yes, there is a section for wine books. However, I would advise against going if you are looking for only 1 specific thing. You may be able to order it, but there's no guarantee it will be in stock if you just show up.
This place is kind of small, therefore the aisles experience crowding. You should know this in case you are claustrophobic.